When I unzip .zip files I get an alias ?

I've unzipped .zip files for years, but with Lion, unzipping a .zip file (created in Snow Leopard) does not result in a set of files, it results in a set of aliases which do not point to any file when I select "Show Original."
Any advice appreciated.

The current version of the built-in Archive Utility has problems with some zip files. Use "The Unarchiver" instead -- free in the App Store.

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    Message was edited by:
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    Message was edited by:
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    Message was edited by:
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